Cleaning brush



FIG. 1 is a front, top and left-side perspective view of a cleaningbrush, showing my new design;

FIG. 2 is a front, bottom and right-side perspective view thereof;

FIG. 3 is a front elevational view thereof:

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left-side elevational view thereof;

FIG. 6 is a right-side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate the portions of the cleaningbrush, which form no part of the claimed design,

CLAIM The ornamental design for a cleaning brush, as shown anddescribed.